Which of the following correctly distinguishes a pollutant from a contaminant in cross-connection control?

Which of the following correctly

Multiple choice — select the best answer

AA pollutant degrades water quality but may not pose an immediate health hazard, while a contaminant poses a direct health hazard
BA contaminant is any foreign substance in water, while a pollutant only refers to chemical substances
CA pollutant originates outdoors and a contaminant originates indoors
DThere is no distinction; both terms are interchangeable in plumbing codes

✓ Correct answer: A. A pollutant degrades water quality but may not pose an immediate health hazard, while a contaminant poses a direct health hazard In cross-connection control, a pollutant creates an aesthetic nuisance or low-degree hazard (e.g., mineral deposits), whereas a contaminant creates an actual health hazard (e.g., pesticides, sewage). This distinction drives the level of backflow protection required.

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Topic: Backflow & Cross-Connection

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Which of the following correctly distinguishes a pollutant from a contaminant in cross-connection control?

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